Scott Disick is still having a hard time with ex Kourtney Kardashian’s recent engagement to Travis Barker.
Kardashian, 42, and Barker, 46, announced their engagement on Oct. 17 after dating for nearly a year. Barker proposed at the Rosewood Miramar resort in Montecito, California, in a romantic setting complete with dozens of red roses and white candles.
Two months later, a source tells PEOPLE that Disick is “still so upset” about his ex’s engagement.
“He’s been doing the best he can but it’s been a very difficult time for him,” the source says. “He’s looking for support right now.”
Disick, 38, dated the Keeping Up with the Kardashians alum on and off for nearly a decade before breaking up for good in 2015. They share three children: Mason, 12, Penelope, 9, and Reign, 7.
The source adds that Disick’s feelings about the situation are “a big reason” why he’s been spending time with Kardashian’s younger sister Kim Kardashian. (Earlier this month, he was spotted seeing a movie and grabbing dinner with Kim, 41, and Pete Davidson in Staten Island.)
“She’s been a good ear for [Scott] and she understands,” the source says of the SKIMS creator.
Months before Kardashian and Barker took the next step in their relationship, Disick gave his ex his blessing to move on with other people.
“I think if you really love somebody, you want them to be happy no matter what. So I do give her a blessing to be happy,” he told Andy Cohen during the two-part Keeping Up with the Kardashians reunion special in June.
However, following the news of Barker’s proposal in October, a source told PEOPLE that Disick was distancing himself from the Kardashian family in order to “make his peace” with the engagement news.
“Scott hasn’t really wanted to deal with Travis and Kourtney because he didn’t feel like he’d have to,” the source said at the time. “At first, it seemed like it was just a casual relationship to him, nothing serious.”
The source continued, “But that didn’t happen and now he’s being forced to deal with it, which is uncomfortable. He knows he has to lean into the discomfort and get past it. He understands that it’s not Kourtney’s job or Travis’s job to make him okay with this. It’s his job, and if he’s going to co-parent with Kourtney, which he has been, he has to process this and make his peace with it.”
The source said “distancing himself from the family” was a way for Disick to achieve that. “It’s not about them, it’s not about Kourtney. It’s about him needing some time to process this and deal with it on his own, without them. He’ll come around soon.”
Scott needs to call up Kanye and maybe they can start a book club or something — instead of spending all this time worrying about their exes.